Finding the Fourth Proportional to 3,101.86, 4,651.59 and 1,021.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,101.86 : 4,651.59 = 1,021.48 : x
2. Step 2: Convert to fraction form
   3,101.86/4,651.59 = 1,021.48/x
3. Step 3: Cross multiply
   3,101.86x = 4,651.59 × 1,021.48
4. Step 4: Simplify right side
   3,101.86x = 4,751,498.35
5. Step 5: Solve for x
   x = 4,751,498.35/3,101.86
6. Step 6: Final answer
   x = 1,531.82